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Phylogeny, biogeography and evolution of perennation structures in Montieae (Portulacaceae)

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Year
2005

Citation

O'Quinn, Robin Lea, 2005, Phylogeny, biogeography and evolution of perennation structures in Montieae (Portulacaceae): Washington State University.

Summary

Phylogeny reconstructions based on analyses of DNA sequence data from nuclear ribosomal and chloroplast markers were used to revise the taxonomy of Montieae (Portulacaceae), infer biogeographic diversification of perennial clades in Claytonia , and test hypotheses of morphological homology. Phylogenetic results resolved two major clades that correspond to Claytonia and Montia as previously circumscribed. In each genus, we recognize three subclades as sections. In Claytonia , section Limnia , all annuals except for the perennials C. sibirica and C. palustris ; section Rhizomatosae , high elevation or high latitude perennials with rhizomatous or caudicose growth habits, except for the annual C. arenicola and section Claytonia , species [...]

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